|
|
Obligatory
finesse |


|
Odd-even
discard signals |


|
Oden rule |


|
Offside
double |

|
Ogust
rebids |

|
One
diamond negative response to one club |

|
One
Notrump rebid |

|
One
Notrump response |


|
One
Notrump response to major, forcing |


|
One
Notrump response to minor suit |

|
One-over-one
response |


|
One-two-three
pre-emptive |

|

Opening
one notrump bid |

|
Opponents
suit |

|
Optional
double |

|
Out on a
limb |

|
Out-of-the-blue
cuebid |

|
Overcall
in opponents major suit |


|
Overcall
in opponents minor suit |

|
Overlead |

|
Overruff |


|
Overtake |

|
Overtrump |

|
|
|